Compression of two extrusion-cast explosives to 500 MPa. [RX-08-FO and RX-08-EL]

Technical Report · Thu Oct 01 04:00:00 EDT 1987

OSTI ID:5729364

Costantino, M; Tao, W; Ornellas, D; Clements, R

Experimental data is presented for room-temperature isothermal compression of two extrusion-cast explosives, RX-08-FO and RX-08-EL. The samples, were loaded hydrostatically to 500 MPa at strain rates between 1 x 10/sup -4/ s/sup -1/ and 2 x 10/sup -4/ s/sup -1/. Volume compression was found by measuring the change in length of a bellows piezometer and relating it to a change in volume with a calibration based on the equation of state of water. We defined the P-V curve for each material by averaging the results from several runs, using a nonlinear regression analysis to fit the data for each run to a first-order Murnaghan-form equation. Maximum volume compressions for both materials were near 5%, and their bulk moduli were found to be near 6 GPa at ambient pressure and to increase by a factor of two as the pressure rose to the 500-MPa maximum reached in the tests. These are the first static-high-pressure compressibility data obtained for extrusion-cast explosives. By correlating these data with data from other investigators' experiments, such as uniaxial compression tests on similar materials, we can observe the strong stress dependence, temperature dependence, and time dependence of the bulk properties of these materials. 12 refs., 5 figs., 2 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5729364
• Report Number(s): UCRL-53827; ON: DE88003271
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
ACETALS
CHEMICAL COMPOSITION
CHEMICAL EXPLOSIVES
COMPRESSIBILITY
COMPRESSION
DATA
EQUATIONS
ETHERS
EXPANSION
EXPERIMENTAL DATA
EXPLOSIVES
EXTRUSION
FABRICATION
INFORMATION
MATERIALS WORKING
MECHANICAL PROPERTIES
MEDIUM TEMPERATURE
METHYLAL
NITRO COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PIEZOMETRY
PLASTICIZERS
PRESSURE DEPENDENCE
PRESSURE MEASUREMENT
SHAPED CHARGES
STRESSES
THERMAL STRESSES
TIME DEPENDENCE
VERY HIGH PRESSURE
VOLUME
YOUNG MODULUS